Display unit for selective calling receiver

Abstract

A selective calling receiver display unit having a displaying function, which including a photo-detecting section for detecting the quantity of light of an incident light beam, and a display control section for processing the display action of a display section. The display control section controls the on-off operation of the screen display of the display section according to the quantity of light detected by the photo-detecting section, so that the screen display is automatically turned on and off according to the necessity for screen display which is based on the use of the selective calling receiver.

What is claimed is:  
     
       1. A display unit in a selective calling receiver which has a displaying function, comprising: 
       photo-detecting means for detecting a quantity of light of an incident light; and  
       display processing means for processing a display action of a display section, said display processing means controlling on-off operation of a screen display of said display section according to a quantity of light detected by said photo-detecting means;  
       wherein said display processing means turns on the screen display when the incident light is detected by said photo-detecting means, and turns off the screen display when the incident light is undetected, and wherein said display processing means, when the detection of the incident light is ceased, maintains the screen display turned-on while carrying out a photo-detecting operation a predetermined number of times and, if no light is detected, turns off the screen display.  
     
     
       2. A display unit in a selective calling receiver which has a displaying function, comprising: 
       photo-detecting means for detecting a quantity of light of an incident light; and  
       display processing means for processing a display action of a display section, said display processing means controlling on-off operation of a screen display of said display section according to a quantity of light detected by said photo-detecting means;  
       wherein said display processing means turns on the screen display when the incident light is detected by said photo-detecting means, and turns off the screen display when the incident light is undetected, and wherein said display processing means, when the incident light is initially detected, maintains the screen display turned-off while carrying out a photo-detecting operation a predetermined number of times and, if the incident light continues to be detected, turns on the screen display.  
     
     
       3. A display unit in a selective calling receiver which has a displaying function, comprising: 
       photo-detecting means for detecting a quantity of light of an incident light; and  
       display processing means for processing a display action of a display section, said display processing means controlling on-off operation of a screen display of said display section according to a quantity of light detected by said photo-detecting means;  
       wherein said display processing means turns on the screen display when the incident light is detected by said photo-detecting means, and turns off the screen display when the incident light is undetected, wherein said display processing means, when the detection of the incident light is ceased, maintains the screen display turned-on while carrying out a photo-detecting operation a predetermined number of times and, if no light is detected, turns off the screen display, and wherein said display processing means, when the incident light is initially detected, maintains the screen display turned-off while carrying out a photo-detecting operation a predetermined number of times and, if the incident light continues to be detected, turns on the screen display.